Re: [PATCH v4] trace,x86: add x86 irq vector tracepoints

[H. Peter Anvin]

On 09/21/2012 05:40 PM, Seiji Aguchi wrote:
>     Those x86 specific ones are not really frequently raised vectors, so
>     enabling them all won't affect performance and readability of the
>     traces too much.

... except the cost can be reduced to zero *AND* be made into a more 
general mechanism by simply hooking the IDT.

	-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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